Industrial Electromagnetic Metal Detectors are extensively used in the food industry and typically radiate an electromagnetic signal having a single operating frequency in the range of 50 KHz to 2 MHz. The Electromagnetic Metal Detectors are used by hobbyists and collectors to search for buried or hidden metal objects of value or particular interest, such as coins, jewellery, and artefacts of historical significance. The Electromagnetic Metal Detectors work by generating a low intensity magnetic field from a current flowing through a coil of wire. Industrial Electromagnetic Metal Detectors identify target type by analyzing the phase relationship between a signal transmitted into the ground and a received signal.
